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Finding the Fourth Proportional to 23,424.76, 32,339.53 and 15,490

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Solution

The fourth proportional to 23,424.76, 32,339.53 and 15,490 is: 21,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,424.76 : 32,339.53 = 15,490 : x
  2. Step 2: Convert to fraction form
    23,424.76/32,339.53 = 15,490/x
  3. Step 3: Cross multiply
    23,424.76x = 32,339.53 × 15,490
  4. Step 4: Simplify right side
    23,424.76x = 500,939,319.70
  5. Step 5: Solve for x
    x = 500,939,319.70/23,424.76
  6. Step 6: Final answer
    x = 21,385.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.