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Finding the Fourth Proportional to 15,518,700.90, 23,278,051.35 and 15,518,700.90

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Solution

The fourth proportional to 15,518,700.90, 23,278,051.35 and 15,518,700.90 is: 23,278,051.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,518,700.90 : 23,278,051.35 = 15,518,700.90 : x
  2. Step 2: Convert to fraction form
    15,518,700.90/23,278,051.35 = 15,518,700.90/x
  3. Step 3: Cross multiply
    15,518,700.90x = 23,278,051.35 × 15,518,700.90
  4. Step 4: Simplify right side
    15,518,700.90x = 361,245,116,435,491.25
  5. Step 5: Solve for x
    x = 361,245,116,435,491.25/15,518,700.90
  6. Step 6: Final answer
    x = 23,278,051.35

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.