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Finding the Fourth Proportional to 64,023.76, 88,368.65 and 38,894.32

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Solution

The fourth proportional to 64,023.76, 88,368.65 and 38,894.32 is: 53,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,023.76 : 88,368.65 = 38,894.32 : x
  2. Step 2: Convert to fraction form
    64,023.76/88,368.65 = 38,894.32/x
  3. Step 3: Cross multiply
    64,023.76x = 88,368.65 × 38,894.32
  4. Step 4: Simplify right side
    64,023.76x = 3,437,038,551.07
  5. Step 5: Solve for x
    x = 3,437,038,551.07/64,023.76
  6. Step 6: Final answer
    x = 53,683.80

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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.