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Finding the Fourth Proportional to 64,258.59, 88,671.54 and 38,416.56

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Solution

The fourth proportional to 64,258.59, 88,671.54 and 38,416.56 is: 53,011.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,258.59 : 88,671.54 = 38,416.56 : x
  2. Step 2: Convert to fraction form
    64,258.59/88,671.54 = 38,416.56/x
  3. Step 3: Cross multiply
    64,258.59x = 88,671.54 × 38,416.56
  4. Step 4: Simplify right side
    64,258.59x = 3,406,455,536.70
  5. Step 5: Solve for x
    x = 3,406,455,536.70/64,258.59
  6. Step 6: Final answer
    x = 53,011.68

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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.