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Finding the Fourth Proportional to 61,316, 84,626.32 and 46,386.08

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Solution

The fourth proportional to 61,316, 84,626.32 and 46,386.08 is: 64,020.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,316 : 84,626.32 = 46,386.08 : x
  2. Step 2: Convert to fraction form
    61,316/84,626.32 = 46,386.08/x
  3. Step 3: Cross multiply
    61,316x = 84,626.32 × 46,386.08
  4. Step 4: Simplify right side
    61,316x = 3,925,483,249.63
  5. Step 5: Solve for x
    x = 3,925,483,249.63/61,316
  6. Step 6: Final answer
    x = 64,020.54

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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.