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Finding the Fourth Proportional to 64,916.70, 91,014.60 and 64,916.70

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Solution

The fourth proportional to 64,916.70, 91,014.60 and 64,916.70 is: 91,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,916.70 : 91,014.60 = 64,916.70 : x
  2. Step 2: Convert to fraction form
    64,916.70/91,014.60 = 64,916.70/x
  3. Step 3: Cross multiply
    64,916.70x = 91,014.60 × 64,916.70
  4. Step 4: Simplify right side
    64,916.70x = 5,908,367,483.82
  5. Step 5: Solve for x
    x = 5,908,367,483.82/64,916.70
  6. Step 6: Final answer
    x = 91,014.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.