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Finding the Fourth Proportional to 15,700.08, 23,549.88 and 5,319.12

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Solution

The fourth proportional to 15,700.08, 23,549.88 and 5,319.12 is: 7,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.08 : 23,549.88 = 5,319.12 : x
  2. Step 2: Convert to fraction form
    15,700.08/23,549.88 = 5,319.12/x
  3. Step 3: Cross multiply
    15,700.08x = 23,549.88 × 5,319.12
  4. Step 4: Simplify right side
    15,700.08x = 125,264,637.71
  5. Step 5: Solve for x
    x = 125,264,637.71/15,700.08
  6. Step 6: Final answer
    x = 7,978.60

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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.