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Finding the Fourth Proportional to 59,887.60, 89,831.40 and 53,148.40

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Solution

The fourth proportional to 59,887.60, 89,831.40 and 53,148.40 is: 79,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,887.60 : 89,831.40 = 53,148.40 : x
  2. Step 2: Convert to fraction form
    59,887.60/89,831.40 = 53,148.40/x
  3. Step 3: Cross multiply
    59,887.60x = 89,831.40 × 53,148.40
  4. Step 4: Simplify right side
    59,887.60x = 4,774,395,179.76
  5. Step 5: Solve for x
    x = 4,774,395,179.76/59,887.60
  6. Step 6: Final answer
    x = 79,722.60

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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.