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Finding the Fourth Proportional to 65,294.76, 90,106.76 and 35,486.76

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Solution

The fourth proportional to 65,294.76, 90,106.76 and 35,486.76 is: 48,971.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,294.76 : 90,106.76 = 35,486.76 : x
  2. Step 2: Convert to fraction form
    65,294.76/90,106.76 = 35,486.76/x
  3. Step 3: Cross multiply
    65,294.76x = 90,106.76 × 35,486.76
  4. Step 4: Simplify right side
    65,294.76x = 3,197,596,966.50
  5. Step 5: Solve for x
    x = 3,197,596,966.50/65,294.76
  6. Step 6: Final answer
    x = 48,971.72

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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.