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Finding the Fourth Proportional to 60,404.48, 90,607.20 and 18,852.80

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Solution

The fourth proportional to 60,404.48, 90,607.20 and 18,852.80 is: 28,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,404.48 : 90,607.20 = 18,852.80 : x
  2. Step 2: Convert to fraction form
    60,404.48/90,607.20 = 18,852.80/x
  3. Step 3: Cross multiply
    60,404.48x = 90,607.20 × 18,852.80
  4. Step 4: Simplify right side
    60,404.48x = 1,708,199,420.16
  5. Step 5: Solve for x
    x = 1,708,199,420.16/60,404.48
  6. Step 6: Final answer
    x = 28,279.35

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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.